Alex Biston takes an offroad tour in Palm Desert to the San Andreas Fault, a continental rift that has caused many ...

The San Andreas Fault is a continental transform fault that extends roughly 1,200 kilometers (750 mi) through California. It forms the tectonic boundary between the Pacific Plate and the North ...

Friday’s quake, and its much more powerful relative, likely both occurred along the San Andreas fault, said Robert Skoumal, a research geophysicist at the United States Geological Survey.

Recent earthquakes that have shaken California may be a result of a Southern California fault line considered even more dangerous than the San Andreas fault ... Let us know via science@ ...